
The Australian Koala Series is one of the most beloved collections at Perth Mint. First introduced as a 1 oz silver bullion coin in 2007, this collection has expanded to feature additional BU silver issues, proof coins, and even high-relief specimens with a gilded 24-karat gold layer. Today, 2025 5 oz Proof Australian Silver Koala Coins are available from JM Bullion.
Coin Highlights:
Koala habitats center around eucalyptus forests and woodlands, as these marsupials depend almost exclusively on eucalyptus leaves for nutrition. They inhabit open forests, woodland areas, and coastal regions from Queensland through New South Wales, Victoria, and South Australia. However, habitat fragmentation, urbanization, and climate change have severely impacted koala populations, with suitable habitat becoming increasingly scattered and isolated.
All 2025 5 oz Proof Australian Silver Koala Coins in this listing are housed in classic Perth Mint displays with a black base and a clear, acrylic lid. The coin arrives in a Koala-themed shipper with an included Certificate of Authenticity. The high-relief strike creates a deeper background field to heighten the details of the design elements. Each coin has a delicate application of 24-karat gold on the rim of the coin and the koala on the reverse.
On the obverse of 2025 Proof Australian Silver Koalas, you will find the first-generation bust of His Majesty King Charles III. Designed for Perth Mint and other Australian coins by Dan Thorne, this left-profile relief shows Charles III without a crown.
The reverse side of 2025 5 oz Proof Silver Koala Coins depicts a koala clinging to the branch of a eucalyptus branch. There are three recognized subspecies across Australia, with those in Northern Queensland typically smaller and grayer, while koalas in Victoria are larger and have darker fur. Populations found in New South Wales fall in between the other two subspecies in appearance.
Please contact JM Bullion if you have any questions about silver coins for sale. You can call us at 800-276-6508, chat with us online, or email us directly.

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The Australian Koala Series is one of the most beloved collections at Perth Mint. First introduced as a 1 oz silver bullion coin in 2007, this collection has expanded to feature additional BU silver issues, proof coins, and even high-relief specimens with a gilded 24-karat gold layer. Today, 2025 5 oz Proof Australian Silver Koala Coins are available from JM Bullion.
Coin Highlights:
Koala habitats center around eucalyptus forests and woodlands, as these marsupials depend almost exclusively on eucalyptus leaves for nutrition. They inhabit open forests, woodland areas, and coastal regions from Queensland through New South Wales, Victoria, and South Australia. However, habitat fragmentation, urbanization, and climate change have severely impacted koala populations, with suitable habitat becoming increasingly scattered and isolated.
All 2025 5 oz Proof Australian Silver Koala Coins in this listing are housed in classic Perth Mint displays with a black base and a clear, acrylic lid. The coin arrives in a Koala-themed shipper with an included Certificate of Authenticity. The high-relief strike creates a deeper background field to heighten the details of the design elements. Each coin has a delicate application of 24-karat gold on the rim of the coin and the koala on the reverse.
On the obverse of 2025 Proof Australian Silver Koalas, you will find the first-generation bust of His Majesty King Charles III. Designed for Perth Mint and other Australian coins by Dan Thorne, this left-profile relief shows Charles III without a crown.
The reverse side of 2025 5 oz Proof Silver Koala Coins depicts a koala clinging to the branch of a eucalyptus branch. There are three recognized subspecies across Australia, with those in Northern Queensland typically smaller and grayer, while koalas in Victoria are larger and have darker fur. Populations found in New South Wales fall in between the other two subspecies in appearance.
Please contact JM Bullion if you have any questions about silver coins for sale. You can call us at 800-276-6508, chat with us online, or email us directly.